Tektronix TBS1000 Series, TDS2022C, TDS2014C, TDS2024C, TDS2002C Service Manual

...
xx
TBS1000 Series
ZZZ
Digital Storage Oscilloscopes
Service Manual
*P077077201*
077-0772-01
xx
TBS1000 Series
ZZZ
Digital Storage Oscilloscopes
Revision B (20161230)
This document applies to TBS1000 models with no display adapter module.
Warning
The servicing instructions are for use by qualied personnel only. To avoid personal injury, do not perform any servicing unless you are qualied to do so. Refer to all safety summaries prior to perform ing service.
www.tek.com
077-0772-01
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Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published m aterial. Specications and price change privileges reserved.
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OpenChoice is a registered trademark of Tektronix, Inc.
Contacting Tektronix
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For product information, sales, service, and technical support:
In North America, call 1-800-833-9200. Worldwide, visit www.tektronix.com to nd contacts in your area.
Table of Contents
General safety summary .................. .................................. .................................. .... vi
Service safety summary.......................................................................................... viii
Preface.............................................................................................................. ix
Manual Conventions.............................. .................................. .......................... ix
Related Documentation ...................................................................................... ix
Specications
Specications ........ .................................. ................................ ........................... 1-1
Signal Acquisition System Characteristics.. .. ... . . . ... . . . ... . .... .. ... . . . ... . .... .. ... . .... .. ... . . . ... . .. 1-1
Time Base System .. .................................. .................................. ..................... 1-6
Triggering System ........ .................................. .................................. ............... 1-8
Display Specications........................ ................................ ............................. 1-12
Interfaces and Output Ports Specications.............................................................. 1-13
Data Handling Characteristics........... .................................. ............................... 1-13
Power Distribution System ............................................................................... 1-13
Mechanical Characteristics ............................................................................... 1-14
Environmental Performance.............................................................................. 1-14
Data Logging System Characteristics ................................................................... 1-14
Limit Testing System Characteristics. .. . . ... . . . ... . .... .. ... . . . ... . . . ... . .... .. ... . . . ... . .... .. ... . . . ... 1-15
WheretoFindOperatingInformation
Where to Find Operating Information........................................... ............................... 2-1
Theory of Operation
Theory of Operation..................... ................................ .................................. ....... 3-1
System Level Block Diagrams .................. .................................. ......................... 3-1
Main Board................................................................................................... 3-3
Acquisition System .. . ... . .. ... . . . ... . . . ... . . . ... . . . ... . . . ... . .. ... . . . ... . . . ... . . . ... . . . ... . .. ... . . . ... . 3-3
Processing and Display System ...... .................................. ............................... 3-4
Input Signal Interface.............................. ................................ ..................... 3-4
Probe Compensation....... .................................. .................................. ......... 3-4
External Trigger ......................................................................................... 3-4
Main Board Power ...................................................................................... 3-4
Power Supply................................................................................................. 3-4
Display Module . .................................. ................................ ........................... 3-5
Front Panel ................ .................................. .................................. ............... 3-5
Two-Channel Oscilloscopes ... .. ... . ... . . . ... . ... . . . ... . ... . . . ... . ... . . . ... . ... . . . ... . ... . . . ... . ... . . . 3-5
TBS1000 Series Oscilloscope Service Manual i
Table of Contents
Four-Channel O
scilloscopes ... . ... . .. ... . . . ... . . . ... . . . ... . . . ... . . . ... . . . ... . . . ... . . . ... . . . ... . . . ... . . 3-5
Performance Verication
Performance Verication . .................................. .................................. ................... 4-1
Required Equipment......................................................................................... 4-1
Test Record .................. .................................. ................................ ............... 4-2
Performance Verication Procedures ...................................................................... 4-3
Self Test.................................................................................................. 4-3
Self Calibration................. ................................ .................................. ....... 4-3
Check DC Gain Accur
Check Bandwidth ...................... .................................. ............................... 4-5
Check Sample Rate Accuracy and Delay Time Accuracy................................... ....... 4-6
Check Edge Trigger Sensitivity .... .................................. ................................ . 4-7
Check External Edge Trigger Sensitivity............................................ ................. 4-9
Check Vertical Position Accuracy.. .. ... . .. ... . . . ... . . . ... . . . ... . . . ... . .. ... . . . ... . . . ... . . . ... . . . ... 4-10
Adjustment Procedures
Adjustment Procedures .......................................................................................... 5-1
Required Equipment......................................................................................... 5-1
Adjustment Procedure....................................................................................... 5-1
Enable the Service Menu.................... ................................ ........................... 5-2
Adjustment Procedure ........................... .................................. ..................... 5-4
Maintenance....................................................................................................... 6-1
Preventing ESD .............................................................................................. 6-1
Inspection and Cleaning...................... ................................ ............................... 6-1
General Care............................................................................................. 6-2
Interior Cleaning ........................................................................................ 6-2
Exterior Cleaning ................ .................................. .................................. ... 6-2
Exterior Inspection................... .................................. ................................. 6-3
Interior Inspection ....... ................................ .................................. ............. 6-3
Cleaning Procedure, Interior
Removal and Installation Procedures..................... .................................. ............... 6-6
Summary of Procedures................. .................................. ............................. 6-6
Required Tools ... ................................ .................................. ..................... 6-8
Rear Feet .................... ................................ .................................. ........... 6-8
Flip Feet.................................................................................................. 6-9
Front-Panel Knobs...................................................................................... 6-9
Power Button ..................... .................................. ................................ ..... 6-9
Rear Case .............................................................................................. 6-10
Front Feet ............................. .................................. ............................... 6-11
acy........... .................................. ................................. 4-3
........................ ................................ ................... 6-4
ii TBS1000 Series Oscilloscope Service Manual
Table of Contents
Power Supply Mo
Internal Assembly.................................... .................................. ............... 6-13
Front-Panel Cable.................. ................................ .................................. . 6-15
Main Board Module (without the Display Adapter Module) ......... ........................... 6-16
Display Module ....................................................................................... 6-19
Front-Panel Module................................ ................................ ................... 6-20
Keypad .............. ................................ .................................. ................. 6-21
Troubleshooting................................. ................................ ........................... 6-22
Adjustment After Repair ............................................................................. 6-22
Required Tools and Equipment........................................... ........................... 6-22
Troubleshooting Tree................................................................................. 6-22
Probe Comp Output.... ................................ .................................. ............. 6-27
Trouble
Troubleshooting the Display......................................................................... 6-29
Troubleshooting the Front Panel ......... .................................. ......................... 6-30
Troubleshooting the Main Board. .................................. ................................. 6-33
Repackaging Instructions .................... .................................. ........................... 6-36
Diagrams .......................................................................................................... 7-1
shooting the Power Supply ...... ................................ ........................... 6-28
dule................................................................................ 6-12
Replaceable Parts
Replaceable Parts................................................................................................. 8-1
Parts Ordering Information ................................................................................. 8-1
Using the Replaceable Parts List........................................................................... 8-2
rts Lists and Exploded Views............................................................................ 8-3
Pa
Appendix A: Example of a Ve rtical Position Accuracy Test Spreadsheet.. . ... . .... .. ... . . . ... . .... .. ... . A-1
Sample Filled-In Vertical Position Accuracy Test Spreadsheet. . ... . ... . .. ... . ... . .. ... . .... .. ... . .... A-1
TBS1000 Series Oscilloscope Service Manual iii
Table of Contents
List of Figure
Figure 3-1: Module-level block diagram (2-channel) ........................................................ 3-1
Figure 3-2:
Figure 4-1: Example of a line graph for the Vertical Position Accuracy test .. . . . ... . .... .. ... . . . ... . . . . 4-13
Figure 5-1: Adjustment setups.................................................................................. 5-3
Figure 6-1: Locator for trim and cabinet removal (2-channel model shown).............................. 6-7
Figure 6-2: Locator for internal modules (2-channel model shown) ....................................... 6-7
Figure 6-3: Main board with the Display Adapter (refer to: Service Manual 077-0772-00) .......... 6-14
Figure 6-
Figure 6-5: Oscilloscope troubleshooting tree (page 1 of 4)... .. ... . . . ... . . . ... . . . ... . . . ... . . . ... . .... .. .. 6-23
Figure 6-6: Oscilloscope troubleshooting tree (page 2 of 4)... .. ... . . . ... . . . ... . . . ... . . . ... . . . ... . .... .. .. 6-24
Figure 6-7: Oscilloscope troubleshooting tree (page 3 of 4)... .. ... . . . ... . . . ... . . . ... . . . ... . . . ... . .... .. .. 6-25
Figure 6-8: Oscilloscope troubleshooting tree (page 4 of 4)... .. ... . . . ... . . . ... . . . ... . . . ... . . . ... . .... .. .. 6-26
Figure 7-1: TBS1000 series block diagram ................................................................... 7-2
Figur
Figure 8-2: Exploded diagram, 4-channel models ................. .................................. ......... 8-6
Figure 8-3: Power supply module, cables, and wires.......................... ............................... 8-8
Figure 8-4: Exploded diagram, back case and trim.................. .................................. ..... 8-10
Module-level block diagram (4-channel) ........................................................ 3-2
4: Instrument cable locations (Main Board without the Display Adapter Module) .. . . . .... . 6-17
e 8-1: Exploded diagram, 2-channel models............................................................ 8-3
s
iv TBS1000 Series Oscilloscope Service Manual
List of Tables
Table 1-1: Signal acquisition system characteristics . .. ... . .. ... . . . ... . .... .. ... . . . ... . . . ... . . . ... . . . ... . . . .. 1-1
Table 1-2: T
Table 1-3: Triggering system.................................................................................... 1-8
Table 1-4: Display specications .................... .................................. ....................... 1-12
Table 1-5: Interfaces and output ports specications.................... ................................ ... 1-13
Table 1-6: Data handling characteristics ..................................................................... 1-13
Table 1-7: Power distribution system ....... .................................. ............................... 1-13
Table 1-8
Table 1-9: Environmental performance ...................................................................... 1-14
Table 1-10: Data logging system characteristics....................... .................................. ... 1-15
Table 1-11: Limit testing system characteristics . .. ... . .. ... . ... . .. ... . .... .. ... . . . ... . ... . .. ... . .... .. ... . . 1-15
Table 4-1: Performance verication ..................... .................................. ..................... 4-1
Table 4-2: Test record ............................................................................................ 4-2
Table
Table 5-2: Adjustment steps..................................................................................... 5-5
Table 6-1: External inspection checklist ....................................................................... 6-3
Table 6-2: Internal inspection checklist....................... ................................ ................. 6-4
Table 6-3: Tools and equipment ........... .................................. ................................. 6-22
Table 6-4: Probe Comp output................... ................................ ............................. 6-27
ble 6-5: Troubleshooting the power supply...................... ................................ ......... 6-28
Ta
Table 6-6: Troubleshooting the front panel – service....................................................... 6-30
Table 6-7: Troubleshooting the front panel – Service Diag..................................... ........... 6-30
Table 6-8: Troubleshooting the front panel – Mfg. test.................................................... 6-30
Table 6-9: Expected signals at J202 .......................................................................... 6-31
Table 6-10: Troubleshooting the Main board..................... .................................. ......... 6-33
Table 6-11: List of error codes ................................................................................ 6-34
Table 8-1: Replaceable parts list........... .................................. .................................. . 8-2
Table 8-2: Replaceable parts list, 2-channel models........................................... ............... 8-4
Table 8-3: Replaceable parts list, 4-channel models........................................... ............... 8-7
Table 8-4: Replaceable parts list; power supply module, instrument cables, and wires ............... ... 8-8
Table 8-5: Replaceable parts list, back case and trim ............. ................................ ......... 8-11
Table A-1: Vertical position accuracy test spreadsheet. . .... .. ... . .... .. ... . .... .. ... . .... .. ... . .... .. ... . .. A-1
ime base system ......................... .................................. ......................... 1-6
: Mechanical characteristics................. .................................. ..................... 1-14
5-1: Required equipment ...... .................................. .................................. ....... 5-1
Table of Contents
TBS1000 Series Oscilloscope Service Manual v
General safety summary
General safet
To avoid fir
e or personal
injury
ysummary
Review the fo this product or any products connected to it.
To avoid pot
Only qualied personnel should perform service procedures.
Use proper
certied for the country of use.
Connect a
instrument before connecting the probe to the circuit under test. Connect the probe reference lead to the circuit under test before connecting the probe input. Disconnect the probe inpu t and the probe reference lead from the circuit under test before disconnecting the probe from the measurement instrument.
Ground the product. This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output
nals of the product, ensure that the product is properly grounded.
termi
Observe all terminal ratings. To avoid re or shock hazard, observe all ratings
arkings on the product. Consult the product manual for further ratings
and m information before making connections to the product.
llowing safety precautions to avoid injury and prevent damage to
ential hazards, u se this product only as specied.
power cord. Use only the power cord specied for this product and
nd disconnect properly. Connect the probe output to the measurement
nect the probe reference lead to earth ground only.
Con
Do not apply a potential to any terminal, including the comm o n terminal, that
eeds the maximum ratingofthatterminal.
exc
Power disconnect. The power switch disconnects the product from the power
urce. See instructions for the location. Do not block the power switch; it must
so remain accessible to the user at all times.
o not operate without covers. Do not operate this product with covers or panels
D
removed.
Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected by qualied service personnel.
Avoid exposed circuitry. Do not touch exposed connections and components when power is present.
vi TBS1000 Series Oscilloscope Service Manual
General safety summary
Terms in this manual
Symbols and terms on the
product
Do not operate i
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Provide prop
on installing the product so it has proper ventilation.
These terms may a ppear in this manual:
WAR N ING.
in injury or loss of life.
CAUTION
damage to this product or other property.
These t
erms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the ma
n wet/damp conditions.
er ventilation. Refer to the manual's installation instructions for details
Warning statements identify conditions or practices that could result
. Caution statements identify conditions or practices that could result in
rking.
WARNING indicates an injury hazard not immediately accessible as you
the marking.
read
CAUTION indicates a hazard to property including the product.
The following symbol(s) may appear on the product:
TBS1000 Series Oscilloscope Service Manual vii
Service safety summ a ry
Service safet
ysummary
Only qualifie safety summary and the General safety summary before performing any service procedures.
Do not service alone. Do not perform internal service or adjustments of this product unless another person capable of rendering rst aid and resuscitation is present.
Disconnect power. To avoid electric shock, switch off the instrument power, then disconnect the power cord from the mains power.
Use care when servicing with power on. Dangerous voltages or currents may exist in this p test leads before removing protective panels, soldering, or replacing components.
To avoi
d personnel should perform service procedures. Read this Service
roduct. Disconnect power, remove battery (if applicable), and disconnect
d electric shock, do not touch exposed connections.
viii TBS1000 Series Oscilloscope Service Manual
Preface
Manual Conventions
This service manual provides information to verify performance of, calibrate, troubleshoot, disassemble, and replace parts on the TBS1000 Series Digital Storage Osci
Unless noted otherwise, the term "oscilloscope" refers to all models in the TBS1000 ser
lloscopes.
ies.
Modules
Replaceable Parts
Safety
Related Documentation
This manu before attempting service.
Throughout this manual, any replaceable component, assembly, or part is referred to by the
A module is composed of electrical and mechanical assemblies, circuit cards, interc
This manual refers to any eld-replaceable assembly or mechanical part specically by its name or generically as a replaceable part. In general, a
aceable part is any circuit board or assembly, such as the hard disk drive, or a
repl mechanical part, such as the I/O port connectors, that is listed in the replaceable parts list.
Sym at the beginning of this manual.
al uses certain conventions that you should become familiar with
term module.
onnecting cables, and user-accessible controls.
bolsandtermsrelatedtosafetyappearintheServiceSafetySummaryfound
To read about Use these documents
nstallation and
I Operation
Programmer Commands
TBS1000 Series Oscilloscope Service Manual ix
he oscilloscope user manual, available on the Tektronix Web
T site.Go to www.tektronix.com/manuals and search for the user
manual for your product (available in 11 languages).
The oscilloscope programmer manual, available on the Tektronix Web site. Go to www.tektronix.com/manuals and search for the
programmer m anual for your product.
Preface
x TBS1000 Series Oscilloscope Service Manual
Specications
Specications
These specications apply to all TBS1000 series oscilloscopes. To verify that an oscilloscope meets specications, it must rst meet the following conditions:
The oscilloscope must have been operating continuously for twenty minutes within the specied ope rating temperature.
You must perform the Do Self Cal operation, accessible through the Utility menu, if the operating temperature has changed by more than 5 °C (9 °F) since the l
The oscilloscope must be within the factory calibration interval of o ne year.
Specications are provided in the following tables. All specications are guaranteed unless noted "typical." Specications that are marked with the symbol are chec Ver ication.)
Signal Acquisition System Characteristics
NOTE. All amplitude-related or modied speci cations require 1X probe
attenuation factors unless otherwise specied. This is due to the way the displayed
itivity works. This does not affect actual methods of attachment. It only alters
sens the relationship between displayed scale factors and the specications.
ast time the Do Self Cal operation w as performed.
ked in the Performance Verication section. (See page 4-1, Performance
le 1-1: Signal acquisition system characteristics
Tab
cription
Characteristic
Number of Input Channels
Input Coupling DC, AC, or GND Input Impedance, DC
Coupled
Des
TBS1152 TBS1102
S1062
TB TBS1042 TBS1022
BS1154
T TBS1104 TBS1064
1MΩ ±2%inparallelwith20pF±3pF
nominally identical channels, sampled
Two simultaneously.
Four nominally identical channels, sampled
imultaneously
s
TBS1000 Series Oscilloscope Service Manual 1–1
Specications
Table 1-1: Signal acquisition system characteristics (cont.)
Characteristic
Maximum Input Voltage
Description
At the front panel connector, 300 V
, Installation Category II; derate at 20 dB/decade above 100 kHz to
RMS
13 V peak AC at 3 MHz and above. Based on sinusoidal or DC input signal. The maximum viewable signal while DC coupled is ±50 V offset
±5 V/div at 4 divisions, or 70 V. AC coupling allows measuring signals on a DC level up to 300 V. For nonsinusoidal waveforms, peak value must be less than 450 V. Excursions above 300 V should be less than 100 ms in duration, and the duty factor is limited to < 44%. The RMS signal level must be limited to 300 V. If these values are exceeded, damage to the instrument may result.
8 bits except at 2 mV/divNumber of Digitized B its Displayed vertically with 25 digitization levels per division, 10 divisions dynamic range. 2 mV/div setting is generated by digital multiplication and the resolution is reduced. Given 100 levels
available, the resolution is >6.5 bits. Sensitivity Range 2 m V/div to 5 V/div in 1-2-5 sequence with the probe attenuation set to 1X. Display Gain Variable
The Display Gain Variable function allows the user to vary the vertical display gain continuously over the
full range.
Resolution is that of the coarse gain from which these data are constructed. Fine gain values (for
instance 120 mV/div) are acquired at the next higher coarse gain setting (in this case 200 mV/div).
The Display Gain Variable is achieved by digital multiplication of the data to obtain the settings between
the 1-2-5 gain settings.
Hard copy outputs to printer will be exactly the same as seen on screen even when the Display Gain
Variable is used.
However, WAVEFORM DATA obtained through the I/O interface is limited to the 1-2-5 gain settings. Probe Scale Factors
1X, 10X, 20X, 50X, 100X, 500X, 1000X voltage attenuation.
5, 1, 500 m, 200 m, 20 m, 10 m, 1 m V/A current scale factor.
This adjusts the display scale factor of the instrument to accommodate various probe types.
Accuracy of the probe used must be added to the accuracy specications of instrument.
No automatic probe interface is provided, so you must verify that the settings match the probe
characteristics. The probe check function allows setting of the proper attenuation for voltage probes. Acquisition Modes
Sample, Peak Detect, Average
Envelope mode not provided Retained Front Panel
Settings
Front panel settings are retained when the instrument power is turned off and on with the power switch.
The settings are retained when the line power is turned off and on.
The instrument periodically saves front panel se ttings after settings are changed. There is a delay of
three seconds after the last change and before the storage of the settings in memory.
1–2 TBS1000 Series Oscilloscope Service Manual
Table 1-1: Signal acquisition system characteristic s (cont.)
Specications
Characteristic
Math Modes
Voltage Measurement Functions
DC Gain Accuracy, Sample or Average Acquisition
DC Voltage Measurement Accuracy, Average Acquisition Mode
Delta Volts Measurement Accuracy, Average Acquisition Mode
Analog Bandwidth
Description
All Units: Channel 1 – Channel 2 Channel 2 – Channel 1 Channel 1 + Channel 2 Channel 1 * Channel 2 FFT
4 channel units (TBS1154, TBS1104, TBS1064) Channel 3 – Channel 4 Channel 4 – Channel 3 Channel 3 + Channel 4 Channel 3 * Channel 4
Mean, Cyc RMS, Peak-to-Peak, Max, Min, RMS, CursorRMS
This is the difference between the measured DC gain and the nominal DC gain, divided by the nominal DC gain and expressed as a percent.
±3%, 5 V/div through 10 mV/div ±4%, 5 mV/div and 2 mV/div
Vertical position = 0: ±(3% of |reading| + 0.1 div + 1 mV) Vertical position 0 and vertical scale = 2 mV/div to 200 mV/div: ±[3% of |reading + vertical position|
+ 1% of |vertical position| + 0. 2 div + 7 m V] Vertical position 0 and vertical scale > 200 mV/div: ±[3% of |reading + vertical position| + 1% of
|vertical position| + 0.2 div + 175 mV]
Delta volts between any two averages of 16 waveforms acquired under the s ame setup and ambient conditions.
(3% of |reading| + 0.05 div)
Dened in Section 4.6 of IEEE std 1057. The difference between the upper and lower frequencies, at which the amplitude response, as seen in the data record, is 0.707 (-3 dB) of the response seen in the data record at the specied reference frequency. Species only the -3 dB point. It does not include the in-band response.
TBS1000 Series Oscilloscope Service Manual 1–3
Specications
Table 1-1: Signal acquisition system characteristics (cont.)
Characteristic
Analog Bandwidth, DC Coupled, Sample or Average
Analog Bandwidth, DC Coupled, Peak Detect, typical
Analog Bandwidth Selections
Upper-Frequency Limit, 20 MHz Bandwidth Limited, typical
Description
This is analog bandwidth when the instrument is DC coupled in sample or average mode. V/div values
are accurate for probe attenuation settings of 1X. No probe should be installed for these measurements.
System bandwidth is type tested to be equivalent to this specication with the provided probe in 10X
mode. Use Section 4.6.1 of IEEE 1057, with the reference frequency of 1 kHz at an amplitude of
5 divisions, driven from a 50 source with external termination at the input BNC (25 effective source).
TBS1154, TBS1152:
DC to 150 MHz for 5 mV/div through 5 V/div settings with bandwidth limit at full. < 5 mV/div settings
are limited to 20 MHz bandwidth.
TBS1104, TBS1102:
DC to 100 MHz for 5 mV/div through 5 V/div settings with bandwidth limit at full. < 5 mV/div settings
are limited to 20 MHz bandwidth.
TBS1064, TBS1062:
DC to 60 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. < 5 MV/div settings
are limited to 20 MHz bandwidth.
TBS1042:
DC to 40 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. < 5 mV/div settings
are limited to 20 MHz bandwidth.
TBS1022:
DC to 25 MHz for 5 mV/div through 5 V/div settings with bandwidth limit at full. < 5 mV/div settings are
limited to 20 MHz bandwidth.
This is the analog bandwidth when th e instrument is DC coupled. V/div values are accurate for probe
attenuation settings of 1X. No probe should be installed for these measurements.
TBS1154, TBS1152, TBS1104, TBS1102:
DC to 75 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. Settings less
than 5 mV/div are limited to 20 MHz bandwidth.
TBS1064, TBS1062:
DC to 50 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. Settings less
than 5 mV/div are limited to 20 MHz bandwidth.
TBS1042:
DC to 30 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full. Settings less
than 5 mV/div are limited to 20 MHz bandwidth.
TBS1022:
DC to 20 MHz for 5 mV/div through 5 V/div settings with the bandwidth limit at full.
20 MHz bandwidth limit ON/OFF
This is the upper frequency for Analog Bandwidth when the instrument has 20 MHz bandwidth limiting
turned on.
20 MHz
Bandwidth of all trigger paths are similarly limited, except the External Trigger, which is not affected
by BW Limit function. Each channel is separately limited, allowing different bandwidths on different
channels of the same instrument.
1–4 TBS1000 Series Oscilloscope Service Manual
Table 1-1: Signal acquisition system characteristic s (cont.)
Specications
Characteristic
Lower- Frequency Limit, AC Coupled
Rise Time, typical
Peak Detect Mode Pulse Response
Description
This is the lower frequency for Analog Bandwidth when the instrument is AC-coupled
10 Hz. <1 Hz when 10X, passive probes are used.
Model
TBS1154, TBS1152 TBS1104, TBS1102 TBS1064, TBS1062 TBS1042 TBS1022 Rise time is generally calculated from the following formula: Rise time in ns = 350 / Bandwidth in MHz
This is the capability of the instrument to capture single event pulses using the Peak Detect Acquisition Mode.
The minimum single pulse widths for guaranteed 50% or greater amplitude capture are as follows:
Model
TBS1154 TBS1152 TBS1104 TBS1102 TBS1064 TBS1062
Expected full bandwidth rise time
2.6 ns
3.5 ns
6.0 ns
8.8 ns
14.0 ns
Sec/Div Setting
50 sec/div to 5 μS/div
Minimum Pulse Width
12 ns
Vertical Position Ranges
Vertical Position Accuracy
TBS1042 TBS1022
These are the ranges of the user-settable input offset voltage.
Volts/Div Setting
2 mV/div to 200 mV/div > 200 m V /div to 5 V/div
This is the accuracy of the nominal voltage level represented by the code at the vendor of the A-D converter's dynamic range.
Volts/Div Setting
2 mV/div to 200 mV/div ±(1% of |selected value| + 0.1 div + 5 mV) within the
> 200 mV/div to 5 V/div ±(1% of |selected value| + 0.1 div + 125 mV) within the
50 sec/div to 5 μS/div
Position Range
±1.8V ±45V
Position Accuracy
range ±1.8 V
range ±45 V
13 ns
TBS1000 Series Oscilloscope Service Manual 1–5
Specications
Table 1-1: Signal acquisition system characteristics (cont.)
Common Mode Rejection Ratio (CMRR), typical
Crosstalk (Channel Isolation)
With the same signal applied to each channel, CMRR is the ratio of the acquired signal amplitude to the
amplitude of the MATH difference waveform, either (Channel 1 - Channel 2), (Channel 2 - Channel 1)
Model
TBS1154
TBS1152
TBS1104
TBS1102
TBS1064
TBS1062
TBS1042
TBS1022
Section 4.11.1 of IEEE std. 1057. It is the ratio of the level of a signal input into one channel to that of
the s ame signal present in another channel due to stray coupling.
Model
TBS1154, TBS1152 100:1 with a 75 MHz sine wave and with equal V/div settings on each
TBS1104, TBS1102 100:1 with a 50 MHz sine wave and with equal V/div settings on each
TBS1064, TBS1062 100:1 with a 30 MHz sine wave and with equal V/div settings on each
TBS1042 100:1 with a 20 MHz sine wave and with equal V/div settings on each
TBS1022 100:1 with a 10 MHz sine wave and with equal V/div settings on each
Common Mode Rejection Ratio
100:1 at 60 Hz, reducing to 10:1 with 50 MHz sine wave, with equal Volts/Div and Coupling settings on each channel.
100:1 at 60 Hz, reducing to 20:1 with a sine wave with frequency equal to ½ the -3 dB bandwidth and with equal Volts//Div and Coupling settings on each channel.
Crosstalk
channel
channel
channel
channel
channel
Time Base System
Table 1-2: Time base system
Characteristic
Sample-Rate Range
1–6 TBS1000 Series Oscilloscope Service Manual
Description
This is the range of real-time rates, expressed in samples/second, at which a digitizer samples signals at
its inputs and stores the samples in memory to produce a record of time-sequential samples. ( IEEE
1057, 2.2.1)
Model
TBS1154, TBS1152
TBS1104, TBS1102
TBS1064, TBS1062
TBS1042
TBS1022
Sample-rate range
5 S/s to 1000 MS/s
5 S/s to 500 MS/s
Table 1-2: Time b ase system (cont.)
Specications
Characteristic
Record Length
Long-Term Sample Rate and Horizontal Position Time Accuracy
Horizontal Position Time Range
Horizontal Window Display
Delta Time Measurement Accuracy
Time Measurement Functions
Description
(Sin x)/x interpolationWaveform Interpolation Waveform interpolation is activated for sweep speeds of 100 ns/div and faster.
This is the total number of samples contained in a single acquired waveform record (Memory Length in IEEE 1057.2.2.1).
2,500 samples per record. 5 ns/div to 50 s/div in 1–2.5–5 sequenceSeconds/Division Range Sec/Div Variable function is not available for this product.
This is the maximum, total, long-term error in sample-rate or horizontal position time accuracy, expressed in parts per million.
±50 ppm over any 1 ms interval.
Horizontal scale setting Horizontal position time range
5ns/divto10ns/div 25 ns/div to 100 μs/div 250 μs/divto10s/div 25 s/div to 50 s/div The user controls the time from the trigger to the center graticule on the display with the Horizontal
Position knob. The resolution of the Horizontal Position time is 1/25 of a horizontal division. The Window Zone enables a user to select a part of the display to be magnied. The user controls the
location with the H orizontal Position knob and the width with the Sec/Div knob. Vertical cursors show the selected zone. To magnify the zone, the user selects the window from the menu.
This is the accuracy of delta time measurements made on any single waveform.
The limits are given in the following table for signals having an amplitude 5 divisions, a slew rate at the measurement points of 2.0 divisions/ns, and acquired 10 mV/div.
Condition
Single shot, sample m ode, full bandwidth selected
> 16 averages, full bandwidth selected
The Sample Interval is the time between the samples in the waveform record. Frequency, Period, Rise Time, Fall Time, Positive Width, negative Width, Positive Duty Cycle, Phase,
Delay
–4 div * s/div to 20 ms –4 div * s/div to 50 ms –4 div * s/div to 50 s –4 div * s/div to 250 s
Time Measurement Accuracy
±(1 Sample Internal + 100 ppm * |reading| + 0.6 ns)
±(1 Sample Internal + 100 ppm * |reading| + 0.4 ns)
TBS1000 Series Oscilloscope Service Manual 1–7
Specications
Triggering Sy
stem
Table 1-3: Triggering system
Characteris
Trigger Types Edge, Video, Pulse Width Trigger Source
Selection
Horizo Position
Trigger Holdoff Range
External Trigger Input Impe
External Trigger Max
Line Trigger Characteristics
Edge Trigger
tic
ntal Trigger
dance
imum Input Voltage
Trigger Modes Auto, Normal
Description
Models Trigger source selections TBS1052
TBS1102 TBS1062 TBS1042 TBS1022
TBS1154 TBS1104 TBS1064
External/5 selection attenuates the external signal by 5. When Ba
limited. The bandwidth of the External Trigger path is not affected by the bandwidth limit. The tri
500 ns The ab
settings less than 100 ms/Div. This is because Holdoff cannot be set in Scan Mode, which begins at 100 ms/div when Trigger Mode is AUTO. By adjusting Trigger Mode to NORMAL, the Scan Mode oper
1M±2
300 and above
Based on sinusoidal or DC input signal. T he maximum viewable signal while DC coupled is ±50 V offset ±5 V/div at 4 divisions, or 70 V. AC coupling a llow s measuring signals on a DC level up to 300 V. For no than 100 ms duration and the duty factor is limited to < 44%. RMS signal level m ust be limited to 300 V. If these v alues are exceeded, damage to the instrument may result.
Line Trigger mode provides a source to synchronize the trigger with the AC line input.
nput Amplitude requirements: 85 V
I Input Frequency requirements: 45 Hz - 440 Hz.
ndwidth Limit is selected for a channel, the bandwidth of that channel’s trigger path will also be
gger position is set by the Horizontal Position knob.
minimum to 10 s maximum
ility to s et large values of Holdoff is limited by the difculty in adjusting the Holdoff at Sec/Div
ation is turned off, and Holdoff can be adjusted at larger seconds/Div settings.
%inparallelwith20pF±3pF
V
, Installation Category II; derate at 20 dB/decade above 100 kHz to 13 V peak AC at 3 MHz
RMS
nsinusoidal waveforms, peak value must be less than 450 V. Excursions above 300 V should be less
Channel 1 Channel 2 External External/5 AC Line
Channel 1 Channel 2 Channel 3 Channel 4 External External/5 AC Line
- 265 VAC.
AC
1–8 TBS1000 Series Oscilloscope Service Manual
Table 1-3: Triggering system (cont.)
Characteristic Description
AC, DC, Noise Reject, High Frequency Reject, Low Frequency RejectTrigger Coupling The External Trigger path does not have a DC blocking capacitor ahead of the trigger input circuit. The
rolloff associated with AC coupling happens after the input circuit. When attempting to trigger on an AC signal that has a DC offset, care must be used to avoid overloading the input of the External Trigger circuit. For signals that have a large DC offset, using Channel 1 or Channel 2 (and Channel 3 or Channel 4 for the TBS1154, TBS1104, and TBS1064) with AC coupling is preferred.
Trigger Slope Sensitivity,
Edge-Type Trigger, DC Coupled
Rising Edge, Falling Edge
Measurement Style A) The minimum signal levels for achieving stable frequency indication on the Trigger Frequency Counter within 1% of correct indication.
Measurement Style B) Section 4 10.2 in IEEE Std. #1057. The minimum signal levels required for stable edge triggering of an acquisition when the trigger Source is DC coupled.
Trigger Source Sensitivity (Measurement
Channel Inputs
Ext
Ext/5
Trigger Frequency Readout typically stabilizes at 50% more signal than generates a stable visual display.
All products
TBS1154, TBS1152
TBS1104, TBS1102
TBS1064, TBS1062
TBS1042
TBS1022
All products
TBS1154, TBS1152
All products TBS1154,
TBS1152
Specications
Sensitivity (Measurement
style A ), typical
1.5 div from DC to 10MHz(>2mV/div)
4 div from DC to 10 MHz (2 mV/Div)
3 div between 10 MHz and 150 MHz
3 div between 10 MHz and 100 MHz
3 div between 10 MHz and 60 MHz
3 div between 10 MHz and 40 MHz
3 div between 10 MHz and 25 MHz
300 mV from DC to 100 MHz
500 mV from 100 MHz to 150 MHz
1.5 Vfrom DC to 100 MHz 1 V from DC to 100 MHz
2.5 V from 100 MHz to 150 MHz
style B)
1 div from DC to 10 MHz > 2 mV/div)
2.5 div from DC to 10 MHz (2 mV/Div)
1.5 div between 10 MHz and 100 MHz
2.0 div above 100 MHz to 150 MHz
1.5 div between 10 MHz and 100 MHz
1.5 div between 10 MHz and 60 MHz
1.5 div between 10 MHz and 40 MHz
1.5 div between 10 MHz and 25 MHz
200 mV from DC to 100 MHz
350 mV from 100 MHz to 150 MHz
1.75 V from 100 MHz to 150 MHz
TBS1000 Series Oscilloscope Service Manual 1–9
Specications
Table 1-3: Triggering system (cont.)
Characteristic Description
Sensitivity, Edge-TypeTrigger, non-DC Coupled, typical
for Successful Operation of “Set Level to 50%” Function, typical
Trigger Level Ranges, typical
Trigger Level Accuracy, DC Coupled, typical
Video Trigger
Default Settings for Video Trigger
Video Trigger Source Selection
Video Trigger Polarity Selection
Video Sync Selection
Formats and Field Rates
Trigger Source Sensitivity
AC Same as DC Coupled limits for frequencies 50 Hz and
Noise Rej
HF Rej LF Ref Same as DC Coupled limits for frequencies above 300 kHz. Since AC coupling is not done in the front end, use of a 10M probe does not affect the low frequency
corner. 50 Hz.Lowest Frequency Using a 10M probe will not affect the operation of this function.
Input Channel ±8 divisions from center screen
Ext ±1.6 V Ext/5: The settable resolution for Trigger Level is 0.02 division for an input channel source, 4 mV for Ext source,
and 20 mV for Ext/5 source.
This is the amount of deviation allowed between the level on the waveform at w hich triggering occurs and the level selected for DC-coupled triggering signals
±(0.2 div + 5 mV) for signals within ±4 divisions from the center screen, having rise and fall times of 20 ns.
Ext: ±(6% of setting + 40 mV) for signals less than ±800 mV Ext/5: ±(6% of setting + 200 mV) for signals less than ±4 V
Trigger Mode: Auto Trigger Coupling: AC Same as Source Selections listed above except Line Trigger. Line Trigger source is meaningless in
this mode. Normal (Negative going Sync Signal), Invert (Positive going Sync Signal)
Line, Line #, Odd Field, Even Field, Field: PAL/SECAM, NTSC formats
Fieldrates: 50Hzto60Hz.Video Trigger Line rates: 15 kHz to 20 kHz (NTSC, PAL, SECAM)
above Effective in Sample or Average Mode, > 10 mV/div to
5 V/div. Reduces DC Coupled trigger sensitivity by 2X. Same as DC Coupled limits from DC to 7 kHz.
±8 V
1–10 TBS1000 Series Oscilloscope Service Manual
Table 1-3: Triggering system (cont.)
Characteristic Description
Video Trigger Sensitivity, typical
Pulse-Width Trigger
Pulse-Width Trigger Modes
Pulse Width Trigger Edge
Pulse Width Range 33 ns width 10 seconds Pulse Width
Resolution Equal Guardband
Not Equal Guardband
Pulse-Width Trigger Point
Trigger Frequency C ounter
Trigger Frequency Counter
This is the minimum peak–to–peak video signal required for stable Video-Type triggering.
Source
Input Channels 2 divisions of composite video Ext Ext/5 2 V of composite video
< (Less than), > (Greater than), = (Equal), (Not equal)
Falling edge for positive polarity pulse. Rising edge for negative polarity pulse.
16.5 ns or 1 part per thousand, whichever is larger
t > 330 ns: ±5% < guardband < ±(5.1% + 16.5 ns) t 330 ns: guardband = ±16.5 ns. All pulses, even from the most stable sources, have some amount of jitter. To avoid disqualifying pulses
that are intended to qualify but are not absolutely c orrect values, we provide an arbitrary guardband. Any measured pulse width within the guardband will qualify. If you are looking for pulse width differences that are smaller than the guardband width, offsetting the center should allow discriminating differences down to the guardband accuracy.
330 ns < 1: ±5% guardband < ±(5.1% + 16.5 ns) 165 ns < 1 < 330 ns: guardband = -16.5 ns/+33 ns t 165 ns: guardband = ± 16.5 ns All pulses, even from the most stable sources, have some amount of jitter. To avoid disqualifying pulses
that are intended to qualify but are not absolutely c orrect values, we provide an arbitrary guardband. Any measured pulse width outside the guardband will qualify. If you are looking for pulse width differences that are smaller than the guardband width, offsetting the center should allow discriminating differences down to the guardband accuracy. Not equal has slightly better ability to deal with small pulse widths than equal. T he accuracy is not better.
Equal: The oscilloscope triggers when the trailing edge of the pulse crosses the trigger level. Not Equal: If the pulse is narrower than the specied width, the trigger point is the trailing edge. Otherwise,
the oscilloscope triggers when a pulse continues longer than the time specied as the Pulse Width. Less than: The trigger point is the trailing edge. Greater than (also called the time out trigger): The oscilloscope triggers when a pulse continues longer
than the time specied as the Pulse Width.
This provides a highly accurate means of identifyi ng the frequency of trigger signals. Since averaging takes place over a longer time span, the number of stable digits is improved over the automatic measurement of the same type.
Specications
Typical sensitivity
400 mV of composite video
TBS1000 Series Oscilloscope Service Manual 1–11
Specications
Table 1-3: Triggering system (cont.)
Frequency Counter Resolution
Frequency Counter Accuracy, typical
Frequency Counter Frequency Range, typical
Counter Signal Source
6 digits
±51 ppm including all reference errors and ±1 count errors.
AC coupled. 10 Hz minimum to rated bandwidth.
Pulse width or edge selected trigger source.Frequency Frequency counter measures selected trigger source at all times in pulse width and edge mode, including
when oscilloscope acquisition is halted due to changes in run status, or acquisition of a single shot event has completed.
Frequency counter does NOT m easure pulses that do not qualify as legitimate trigger events. Pulse Width mode: Counts pulses of sufcient magnitude inside the 250 ms measurement window
that qualify as triggerable events (for example, all narrow pulses in a PWM pulse train if set to < mode and the limit is set to a relatively small number).
Edge Trigger mode: Counts all pulses of sufcient magnitude.
Display Specications
Table 1-4: Display specications
Characteristic Description
Display Type
Display Resolution
Brightness, typical
Contrast Ratio and Control, typical
11.5 cm (width) * 8.64 cm (height), 14.3 cm diagonal (5.7”), QVGA, active TFT color liquid crystal display (LCD) with color characters/waveforms on a black background. Surface antiglare (3H) treatment.
This is the number of individually addressable pixels
320 horizontal by 240 vertical pixels The video display contains both the character and waveform displays.
This is the light output of the backlight.
400 cd/m Available black room contrast ratio, full black to full white. 400 minimum, 500 typical.
2
, typical. 320 cd/m2min.
1–12 TBS1000 Series Oscilloscope Service Manual
Specications
Interfaces an
d Output Ports Specications
Table 1-5: Interfaces and output ports specications
Characteris
USB Device USB 2.0 Full S
USB Host USB 2.0 Full Speed host. 12 Mb/sec maximum. Supports USB Mass Storage Class. Bulk Only Subclass
USB Host Current Provides full 0.5 A of 5 V.
GPIB Interface GPIB access via TEK-USB-488 accessory.
Output V Frequency, typical
Data Ha
tic
oltage and
Description
USB-TMC communications with Tektronix extensions. Standard
only. Prov Standard
Standard
Output voltage: 5.0 V ±10% into 1 Mload.Probe Compensator, Frequency: 1 kHz
ides full 0.5 A of 5 V.
ndling Characteristics
peed device. 12 Mb/second maximum. Supports PICTBRIDGE compatibility and provides
Table 1-6: Data handling characteristics
cteristic
Chara
ntion of Front
Rete Panel Settings
Stored Waveforms and Multiple Front Panel
tings
Set
iption
Descr
Front panel settings are stored periodically in memory. The settings are not lost when the instrument is
ed off or if there is a power failure.
turn Two Channel 1, Channel 2, or Math waveforms can be stored in nonvolatile waveform memory A or B.
One, both, or neither of A or B waveform memories can be displayed. For the TBS1154, TBS1104, and
1064, four waveforms, A, B , C, D, or Math can be stored. Ten user s etups of the current instrument
TBS settings can be saved and restored from nonvolatile memory. Additional storage is available when an appropriate mass storage device is connected via USB.
Power Distribution System
ble 1-7: Power distribution system
Ta
Characteristic Description
ess than 30 W at 85 to 275 V
Power Consumption Source Voltage Full Range: 100 to 240 V Source Frequency 360 Hz to 440 Hz from 100 VACto 120 VAC.
Fuse Rating
L
ACRMS
45 Hz to 66 Hz from 100 V
3.15 Amps, T rating, 250 V; IEC and UL approved.
input.
AC
± 10%, Installation Category II (Covers range of 90 to 264 V
to 240 VAC.
AC
AC
TBS1000 Series Oscilloscope Service Manual 1–13
Specications
Mechanical Ch
aracteristics
Table 1-8: Mechanical characteristics
Characteris
Weight
Size
Cooling
tic
Method
Description
Requirement
2.0 kg (4.4 lbs), stand-alone instrument
2.2 kg (4.9 lbs), with accessories
3.6kg(8lbs Height Width Depth Convect
s that follow are nominal:
), when packaged for domestic shipment
ion cooled
Environmental Performance
Table 1-9: Environmental performance
Characteristic Description
Temperature
Humidity
Altitude
Operating 0° C to +50° C (32 °F to 122 °F), with 5° C/minute maximum gradient,
Nonoperating
ating
Oper
Nonoperating
erating
Op Nonoperating
158 mm (6.2
326.3 mm (1
124.1 mm (
nonco –40° 5% to 5% to 45% RH above +40° C up to +50° C, noncondensing, and as limited
by a Maximum Wet-Bulb Temperature of +37° C (derates relative humidity
5 % RH at +50° C)
to 4
o 85% relative humidity (% RH) at up to +40° C
5% t 5% to 45% RH above +40° C up to + 50° C, noncondensing. Above +50° C limited by a Maximum Wet-Bulb Temperature of +37° C
erates relative humidity to 12% RH at +71° C)
(d
to 3000 meters (10,000 feet)
Up
p to 3000 meters (10,000 feet).
U Altitude is limited by possible damage to the LCD at higher altitudes. This
damage is independent of operation
2in)
2.85 in)
4.88 in)
ndensing, up to 3000 m altitude
C to +71° C (–40 °F to 159.8 °F), with 5° C/minute maximum gradient
85% relative humidity (% RH) at up to +40° C
Data Logging System Characteristics
NOTE. This software feature directs the oscilloscope to autom atically collect
data over a period of time. Afte r you congure the trigger conditions to use, you can use the data logging menu to set up the oscilloscope so that it will save all of the triggered waveform to a USB memory device, within a time duration that you have set.
1–14 TBS1000 Series Oscilloscope Service Manual
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